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P-1003 : Novel Catalyst for Hydrogen Generation from Sodium Borohydride Solution
( Palanichamy Krishnan ),양태현,박구곤,이원용,김창수 한국화학공학회 2007 화학공학의이론과응용 Vol.10 No.2
A novel catalyst for hydrogen generation from sodium borohydride solution was investigated. The hydrolysis of NaBH4 has been attracted because of the large hydrogen content of 10.9 wt.%. The special catalyst was necessary to produce hydrogen from NaBH4 solution. For this purpose, the catalysts such as Pt, Ru, PtRu supported on LiCoO2 and anion exchange resin were fabricated. The effects of support material, NaBH4 concentration, catalyst loading were discussed. References [1]S.C. Amendola, S.L. Sharp-Goldman, M.S. Janjua, M.T. Kelly, P.J. Petillo, M. Binder, An ultrasafe hydrogen generator: aqueous, alkaline borohydride solutions and Ru catalyst, J. Power Sources, 85 (2000) 186-189 [2]Yoshitsugu Kojima, Ken-ichirou Suzuki, Kazuhiro Fukumoto, Yasuaki Kawai,Masahiko Kimbara, Haruyuki Nakanishi, Shinichi Matsumoto, Development of 10kW-scale hydrogen generator using chemical hydride, J. Power Sources, 125 (2004)22-26
( P. Krishnan ),박진수,양태현,박구곤,이원용,김창수 한국화학공학회 2007 화학공학의이론과응용 Vol.10 No.2
Blend membranes based on sulfonated polyether ether ketone (SPEEK) were developed for the polymer electrolyte membrane (PEM) fuel cells. The effect of blending ratio and the degree of sulfonation of SPEEK on the properties of the membranes were evaluated. The optimum values for the above parameters were identified. The membranes were characterized in terms of proton conductivity, FT-IR, differential scanning calorimetry (DSC), ion-exchange capacity (IEC), etc. The performance of the membranes under fuel cell operating conditions was evaluated by plotting the I-V curves.
양태현(Yang, Tae-Hyun),이원용(Krishnan, Palanichamy),김창수(Lee, Won-Yong),Kim, Chang-Soo 한국신재생에너지학회 2005 한국신재생에너지학회 학술대회논문집 Vol.2005 No.06
Hydrogen generation by the hydrolysis of aqueous sodium borohydride (NaBH₄) solutions was studied using IRA-400 anion resin dispersed Pt. Ru catalysts and Lithium Cobalt oxide (LiCoO₂) supported Pt, Ru and PtRu catalysts. The performance of the LiCoO₂ supported catalysts is better than the ion exchange resin dispersed catalysts. There is a marked concentration dependence on the performance of the LiCoO₂ supported catalysts and the hydrogen generation rate goes down if the borohydride concentration is increased beyond 10%. The efficiency of PtRu- LiCoO₂ is almost double that of either Ru-LiCoO₂ or Pt-LiCoO₂ for NaBH₄ concentrations up to 10%.